diff --git a/src/ext_adc.rs b/src/ext_adc.rs
index 05e9cdd..fe224aa 100644
--- a/src/ext_adc.rs
+++ b/src/ext_adc.rs
@@ -49,8 +49,8 @@ where
         AdcContext::<D, TXC, RXC, CSP> {
             dma_rx_chan: rx_chan,
             dma_tx_chan: tx_chan,
-            rx_buf:      singleton!(: [u8; 3] = [0x06, 0x40, 0x00]).unwrap(),
-            tx_buf:      singleton!(: [u8; 3] = [0; 3]).unwrap(),
+            tx_buf:      singleton!(: [u8; 3] = [0x06, 0x80, 0x00]).unwrap(),
+            rx_buf:      singleton!(: [u8; 3] = [0; 3]).unwrap(),
             spi:         spi_if,
             cs_pin:      cs_pin
         }
diff --git a/src/main.rs b/src/main.rs
index c08af92..b6d3631 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -56,6 +56,15 @@ const HIGH: u16 = 25000;
 /// if your board has a different frequency
 const XTAL_FREQ_HZ: u32 = 12_000_000u32;
 
+fn convert_adc_measurements(raw: &[u16; 4]) -> (u32, u32, u32)
+{
+    let iout = (raw[0] - raw[1]) as u32 * 3300 * 20 / 4096 / 28; // *20 = division by 50 mΩ shunt
+    let vout = raw[2] as u32 * 3300 * (47 + 10) / 10 / 4096;
+    let vin = raw[3] as u32 * 3300 * (10 + 10) / 10 / 4096;
+
+    (vin, vout, iout) /* units: mV, mV, mA */
+}
+
 /// Entry point to our bare-metal application.
 ///
 /// The `#[rp2040_hal::entry]` macro ensures the Cortex-M start-up code calls this function
@@ -189,20 +198,29 @@ fn main() -> ! {
         let mut adc_value: [u16; 4] = [0; 4];
 
         (adc_ctrl, adc_value[0]) = adc_ctrl.sample_adc_channel(0);
-        delay.delay_us(50);
         (adc_ctrl, adc_value[1]) = adc_ctrl.sample_adc_channel(1);
-        delay.delay_us(50);
         (adc_ctrl, adc_value[2]) = adc_ctrl.sample_adc_channel(2);
-        delay.delay_us(50);
         (adc_ctrl, adc_value[3]) = adc_ctrl.sample_adc_channel(3);
 
+        let (vin, vout, iout) = convert_adc_measurements(&adc_value);
+
         {
             let mut data: String<16>;
 
-            uart.write_full_blocking(b"ADC channels: [");
+            uart.write_full_blocking(b"Vin: ");
+            data = String::from(vin);
+            uart.write_full_blocking(data.as_bytes());
+            uart.write_full_blocking(b"mV - Vout: ");
+            data = String::from(vout);
+            uart.write_full_blocking(data.as_bytes());
+            uart.write_full_blocking(b"mV - Iout: ");
+            data = String::from(iout);
+            uart.write_full_blocking(data.as_bytes());
+
+            uart.write_full_blocking(b"mA - raw: [");
 
             for i in 0..adc_value.len() {
-                data = String::from(adc_value[0]);
+                data = String::from(adc_value[i]);
                 uart.write_full_blocking(data.as_bytes());
 
                 if i < 3 {